INFLUENCE OF HARVESTING TIME ON GROWTH AND YIELD OF MUNGREAN VARIETIES

Abstract

An experiment was conducted at the Agronomy Field, Sher-e-Bangla Agricultural University. Dhaka from March 2007 to July 2007 to observe the influence of harvesting time on growth and yield of mungbean varieties. The treatments were five harvesting times viz. 15, 20, 25, 30 and 35 days after anthesis (DAA) and two mungbean ( Vigna radiaza) varieties viz. BAR! mung 6 -

and Sona mung. The purpose of this experiment was to determine appropriate planting time of summer mungbean in the cropping pattern after identiing the best harvesting time. The varieties behaved differently at different harvesting dates. Delayed harvesting increased the yield of BARI mung 6 but reduced the yield of Sona mung. The highest seed yield (1.66 1 had ) was obtained from BAR! mung 6 harvested at 35 DAA that was similar at 30 DAA (1.63 t haj, 20 DAA (1.42 thi') and 25 DAA (1.41 t hi') of the same variety. The lowest seed yield (0.57 t hi') was obtained from Sona mung harvested at 15 DAA and 35 DAA. The higher yield might be due to better yield contributing character of the two varieties harvested at above mentioned maturity period.